stuart



(No Model.) 7 2 Sheets-Sheet 1.

O. O. STUART. DEVICE FOR WEIGHTING FEED ROLLS.

No. 520,582. Patented May 29, 1894.

(No Model.) I 2 Sheets-Sheet 2.

C. C. STUART.

DEVICE FOR WBIGHTING FEED ROLLS.

No.- 520,582. Patented May 29, 1894.

e e U e 3 f J"ZE f d! I Z g 7 W l J? WZfwawes Inuenr CHARLES C. STUART, OF BROOKLYN, NEW YORK, ASSIGNOR TO THE GLEN COVE MACHINE COMPANY, OE SAME PLACE.

DEVICE FOR WEIGHTING FEED-ROLLS.

SPECIFICATION forming part of Letters Patent No. 520,582, dated May 29, 1894. pp i filed November 14,1893. Serial No. 490,891. (No model.)

.To all whom it may concern.-

Be it known that I, CHARLEs C. STUART, of Brooklyn, in the county of Kingsand State of New York, have invented a new and useful Improvement in Devices for Weighting Feed- Rolls, of which the following is a specification.

My invention relates to an improvement in devices for Weighting feed rolls and is applicable to all classes of planers in which the upper working parts, rollers, cutters, &c., are moved bodily together away from and toward the work and also Where the lower working parts are moved bodily away from and toward the upper working parts.

My invention contemplates the mounting of a weighted lever upon a support extending transversely across the planer so that it shall exert its effect upon one roller carrying yoke or upon a pair of such roller carrying yokes, when two are used, the connection of the weighted lever with its pivotal support being such as to equalize the torsional strain so that lumber of different widths may receive the same effective pressure at whatever point it is introduced laterally of the machine between the rollers.

A practical embodiment of my invention is representedinthe accompanying drawings, in which- Figure 1 represents a vertical longitudinal section of two pairs of feed rolls and the device for applying weight thereto in operative position. Fig. 2 is a top plan view of the same, and Fig. 3 is a vertical transverse section taken through the plane of the yoke supporting shaft.

In the structure which I have chosen to illustrate my invention, the frame A which carries the upper working parts of the planer is assumed to be adjustable bodily toward and away from the frame carrying the lower working parts, as is common.

In the frame A there is journaled a sh aft B provided with a drive wheel I) by which a rotary movement is imparted to the shaft and with a wheel or pinion b for imparting a rotary movement to the rollers.

The upper feed rollers C and C are journaled respectively in yokes D and D loosely.

mounted upon the shaft B so that they may be swung independently of the frame A toward and away from the lower feed rollers o, c. The yoke D is provided with a pair of upwardly extending lugs 01 provided with a suitable bearing face for the action thereon of one end of the weighted lever, and the yoke D is provided with a pair of upwardly extended lugs 61' which, when a pair of movable feed rollers is employed working about a common support, serve as supports for the weighted lever.

The part which I have hereinabove referred to as the weighted lever consists of an elongated sleeve E loosely mounted upon a spindle F extending between the lugs d and pro- 65 vided with arms extending in different directions therefrom, those extending in one direction being denoted by e and bifurcated to receive between their branches bearing rollers f to engage the faces of the lugs d on the yoke D and those extending in the opposite or another direction being denoted by e' and being provided with sockets e for the reception therein of bars 6 on which the weights e are carried. I find it desirable to provide set screws e seated in the walls of the socket pieces 6 for the purpose of impinging against the bars 6 and locking them in their position. The number of arms a with their sockets may be one or more at pleasure, in the present instance I have shown four. When the machine is employed for planing dry, light lumber a single bar a with its weight may give suflicient feeding pressure while in case of heavy, wet lumber and a deepercut, it may require two or more of the bars 6 with their weights to afford the necessary feeding pressure.

In operation, the weight or weights e will be sustained by and fulcrumed on the yokes D' carrying the roller C and will thereby o tend to depress such roller into engagement with the material to be fed while, 'at the same time, the bar e with its weight and its connection with the sleeve E will exert a leverage by means of the arms e against the lugs 01 on 5 the yoke D carrying the feeding roller C which will tend to press said roller downwardly into contact with the material being fed.

Because of the elongated sleeve E extend- IO) ing transversely across the machine and sustaining the levers and their weights thereon it follows that, no matter at what lateral point the weight e be applied, the roller or rollers will be depressed equally-throughout the r entire length so that the lumber or material being fed will receive the same even pressure in whatever lateral position it be fed that it would receive if the depressing weight a 6 were directly over it. This will be so because such torsional strain as there may be Wlll be equalized by the engagement of the sleeve E with its bearing spindle F.

It is obvious that if the roller were dispensed with and a single movable roller 0 relied upon, the sleeve supporting spindle F might be journaled in suitable extensions of the frame A instead of in lugs on the yoke D as shown herein. This change would require no new organization of parts except the very l obvious expedient of providing a bearing for the spindle F and is not therefore illustrated.

What I claim is- 1. The combination with feed rolls and their 1 supporting yokes mounted to swing toward and away from the material to be fed, of a 5 weighted lever fulcrumed upon one of thei yokes and bearing against a companion yoke i to simultaneously press the rollers to their work, substantially as set forth.

2. The combination with a feed roller and its movable supporting yoke, of a weighted lever independent of the yoke, a pivotal support for the lever extending transversely of the machine above the feed roller supporting yoke, and an elongated bearing fixed to the Weighted lever and mounted on the pivotal support, the said lever having an engagement with the yoke to press the roller to its work, substantially as set forth.

3. In combination, a feed roller, its movable supporting yoke, a supporting spindle extending transversely across the path of the material to be fed, an elongated sleeve mounted on said spindle and provided with arms, one weighted and another adapted to engage the movable yoke, substantially as set forth.

4. In combination, afeed roller, its movable supporting yoke, a transverse spindle, an elongated sleeve mounted on the spindle and provided with socket arms for receiving the weighted bars and wit-h arms for engaging the movable yoke and the weighted bars, substantially as set forth.

CHARLES C. STUART. Witnesses:

FREDK. HAYNES, F. HOWARD 'TITLAR. 

